US Bridges

I-15 (SR-15) Nbl over 500 West Street & UP

Fair

Salt Lake County, Utah · APPROX.450 W.1000 So.Slc. · Structure no. 1F 637N

Built
1999
26 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
212 ft
3 main spans
Daily traffic
217,800
2023 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Nbl over 500 West Street & UP is a prestressed concrete continuous stringer/multi-beam or girder carrying I-15 (SR-15) Nbl over 500 West Street & UP in Salt Lake County, Utah. It was built in 1999, so it is 26 years old, younger than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 217,800 vehicles a day, roughly 7% of them trucks, projected to reach 272,250 by 2043. The structure is 212 ft (64.5 m) long and 99 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-15 (SR-15) Nbl
Crosses500 West Street & UP
LocationAPPROX.450 W.1000 So.Slc.
RouteInterstate 15
CountySalt Lake County
StateUtah
Coordinates40.7471, -111.90634
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length212 ft (64.5 m)
Longest span113 ft (34.3 m)
Deck width99 ft (30.1 m)
Roadway width97 ft (29.7 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic217,800 (2023)
Projected traffic272,250 by 2043
Trucks7%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-15 (SR-15) Nbl over 500 West Street & UP built?

It was built in 1999, making it 26 years old in 2025.

What condition is I-15 (SR-15) Nbl over 500 West Street & UP in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does I-15 (SR-15) Nbl over 500 West Street & UP carry?

About 217,800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-15 (SR-15) Nbl over 500 West Street & UP?

The structure is 212 ft (64.5 m) long with a longest span of 113 ft (34.3 m) and a deck 99 ft wide.

Who owns I-15 (SR-15) Nbl over 500 West Street & UP?

It is owned by the State Highway Agency.